CRP and COVID-19: Oral administration of NAC (600 mg effervescent tablets twice daily) for 5 days in combination with pentoxifylline reduced lipid peroxidation, IL-6, CRP, and procalcitonin levels and increased total antioxidant capacity and plasma nitrite levels in patients with both mild and severe COVID-19 more significantly than after the treatment with the pentoxifylline-only [130].